Parts, people, and service timing
There are essentially three elements that need to be considered to get the most uptime for your fixed or mobile equipment. Parts and people need to be considered as well as finding the right service timing. Each of these bring their own unique challenges that need to be addressed.
To reach success, quarry owners and contractors need to first have the right components and spare parts on site while keeping inventory costs low. It is important to understand which parts break more often, as well as their typical life span. When something does break, having only some of the needed spares rather than all of them is never enough. However, at the same time, stocking too much can increase carrying costs so it is important to keep the right or optimal amount on hand. Inventory costs need to be compared to the cost of lost production hours due to missing a simple component. Even though this analysis can take time, the cost of doing nothing is too high.
Determining which parts to keep on-site must also take place. Smaller parts such as electrical components (fuses, modules, contactors, and sensors) are usually inexpensive, but if they are not available, down time can increase which results in significant lost revenue. Workers at the sites often find a work around solution when one of these breaks and components are not available. This tends to be more of a band aid solution and if it happens too many times, the accumulation of small work arounds can cause major problems. Vibrations, dust, and oil contamination are also all hard on the machines. Other areas of the machine including seals, pulleys and screens need to be checked and site personnel need to be aware of parts that need attention.